Sectional ventilating tunnel-roof.



- Patentedjnp'v. 18, |902.- E. H. CALL. l SEGTIUNAL VENTILATING TUNNEL ROOF.

(Application 316i Jan. 30, 19027) 2 sheets-sheet .1.

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www x UIN WWW UNITED STATES PATENT OFFICE.

EUGENE H. CALL, OF SCRANTON, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO JOHN H. LADWIG, -OF SCRANTON, PENNSYLVANIA.

SECTIONAL VENTILATING TUNNEL-ROOF.

SPECIFICATION forming part of Letters Patent No. 713,955, dated November 18, 1902. Application filed January S0, 1902. Serial No. 91,899l (No model.)

To @ZZ whom it may concern: connection with such ventilating apparatus Be it known that I, EUGENE H. CALL, a citiexhaust-fans for rarefyiug the atmosphere zen of the United States, residingatScranton, above the said false roof for removing the 55 in the county of Lackawanua and State of smoke and gases from that portion of tunnel Pennsylvania, have invented certain new and above the false roof; but a number of serious useful Improvements in Sectional Ventilat-l objections has arisen to this structure, a per-` ingTunnel-Roofs; and I do hereby declare the tinent one of which lies in the fact that a maxifollowing to be a full, clear, and exact descripmum of exhaust is required, owing to the fact 6o tion of the invention, such as will enable oththat the smoke and gases are not closely conxo ers skilled in the art to which it appertains to lined. To overcome this and other objecmake and use the same. tions and to produce a cheap, simple, and ef- This invention relates to improvements in fective apparatus for the purpose mentioned, Ventilating apparatus, and more particularly I employ, as will be apparent from the accom- 65 to such as is designed for use in connection panying drawings, suitable funnels, as land with tunnels. 2, each formed from a sheet of suitable mate- The object in view is the removal from a rial, as 3,the said sheets being bolted, riveted, railway-tunuelof all smoke and gases as rapor otherwise suitably secured together, as idly as the same are thrown off from a passat 4, and extend laterally in either direction 7o ing engine. from the point of their attachment, preferably zo "With this and other objects in View the on a horizontal plane, fora suitable distance,

invention consists of a plurality of funnels then curving downwardly, inwardly, and uparranged contiguous the roof of a tunnel, deward ly again, whereby an inclosed longitudiecting means carried thereby and designed nal space is provided, the said plates 3 being 75 to guide smoke and gases of an engine theredesigned to be secured, as at 5, to the roof of into, and means for directing said smoke and the tunnel for being supported in position. gases to said detlector. The points of attachment 5 are such relative It also consists in certain other novel conto the tunnel that theinner longitudinal edges structions, combinations, and arrangements 6 of plates 3, which are spaced a suitable dis- 8o of parts, as will be hereinafter fully described tance apart, lie in vertical planes registering 3o and claimed. with the edges of the smoke-stack of an engine In the accompanyingdrawings,Figurelrepmoving upon track 7 Within the tunnel. It resents a transverse vertical section through will be apparent that as an engine moves upon a tunnel provided with Ventilating apparatus said track 7 the smoke and gases from its 8 5 embodying the features of the present inlstack will be naturally directed by the invention and showing the same applied to a wardly and upwardly extending portions of double-track tunnel. Fig. 2 represents a perthe plates 3 toward the longitudinal central spective View of the same as applied to a space betweenvtheir edges 6. Arranged censingle-track tunnel. Fig. 3 is a detail sectrally above this longitudinal space I pref- 9o tional view showing a different way of formerably provide a defiector, as 8, secured, as

4o ing the ventilator mechanism. at 9, tothe plates 3 and having a central In the art to which the present invention longitudinal ridge depending above said lonrelates it has heretofore been common to congitudinal space, and semicircular or concave struct a tunnel-Ventilating apparatus in the plates formed integral with said ridge and 95 form of a false roof supported beneath the each lying centrally above the respective main roof of the tunnel, spaced therefrom longitudinal edge 6, whereby the smoke and and provided with a longitudinal central slot gas guided into the space between said edges designed to register with the smoke-stack will strike against said centrally-arranged of an engine passing through said tunnel, ridge, be divided, and pass laterally through loo whereby the smoke and gases therefrom the funnels 1 and 2. I may, if preferred, ar-

5o would pass above said false roof and be prerange a suitable exhaus'tfan for removing vented from permeating the main space of the gases from the tunnels 1 and 2, and usuthe tunnel. It is also common to provide in 4 ally do employ such fans in connection with the longer tunnels, but nd that the movement of the atmosphere will naturally remove the greater portion of such gases without the assistance of the exhaust-fau from the shorter tunnels.

As an additional support for the plates 3 3 I may provide at suitable points along the tunnel transversely arranged supportingrods, as 10, preferably having their ends sup-V ported by eyebolts or otherwise attached t0 the walls of the tunnel. The rods 10 are of course arranged in a horizontal plane, contacting with the lower edge of each of the plates 3, whereby said plates maybe secured to said rods, as at 1l.

I have found it desirable to provide deflector-plates, as 12 12, secured to the edges 6 of plates 3, extending downwardly and outwardly and also attached, as at 13 13, to rods 10, whereby the smoke and gases may more effectually be directed against the deflector 8. It will of course be apparent that the plates 12 may be omitted; but they serve to strengthen the structure and aid somewhat in the directing of the smoke and gases.

Of course I may employ the present form of ventilator to tunnels having'more than one track, and in so doing I simply duplicate the parts employed in connection with the single track, as will be readily seen by reference to Fig. 1 of the drawings.

It has been found necessary, despite the fact that the gases and smoke are forced out of funnels l and 2, to provide means of access into said funnels for removing cinders and heavier foreign matter. In order to facilitate such access, I preferably provide manholes, as at 14, in any suitable number at intervals longitudinally of each of the said funnels, each of the said holes being closed by a suitable door l5 in a common and well-known manner.

Although I have specifically set forth one particular embodiment of the present invention, yet I do not desire to be understood as limiting myself to the minor details of structure, but shall feel at liberty to deviate therefrom to a degree within the spirit and scope of the present invention.

As showing one form a little different from that illustrated in Figs. 1 and 2 of the draw ings, I have shown in Fig. 3 a modified structure. In this structure the ventilator is preferably formed of two pieces of material which are joined at the center, as at 20, the parts being bent downwardly at this point, however, instead of upwardly, as shown iu Figs. 1 and 2. By forming the parts of the ventilator in this manner the bent-downwardly meeting edges of the side plates composing the ventilator are also used to form the smokedeflector 17 instead of employing a separate piece, as heretofore described and shown. In this view it will also be seen that the outer edges of the piece comprising the ventilator are bent inwardly and upwardly, as at 18, and are finally bent outwardly again to a slight degree, as at 19. It will thus be seen that practically the same ventilator is pros duced, but it is formed with a fewer number of parts and may, therefore, be produced with a less expense than that already described. This ventilator is secured to the roof of the tunnel in the same manner as the other forms of the mechanism described and shown.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A tunnel- Ventilating apparatus, comprisingapluralityof funnels secured contiguous the roof of the tunnel, adeflector inclosed thereby secured to the inner surface thereof and arranged centrally thereof for directing smoke and gases thereinto, a suitable space being left between said funnels centrally be- Death said dei-lector, and means for directing the smoke and gases to said deflector, substantially as described.

2. A tunnel-Ventilating apparatus, comprising plates secured together and forming longitudinally-inclosed spaces, the lower inner edges of said plates being spaced apart for permitting admission of smoke and gases into said inclosed spaces, and a deflector arranged centrally above the space between said edges for permitting such smoke and gases into the inclosed spaces, said detlector being secured to the inner surface of said plates and extending in both directions beyond said lower inner edges of the plates, substantially as described.

3. A tunnel-ventilating apparatus com` prising longitudinally-arranged fun nels, having the inner lower edges thereof spaced apart, defiect'or-plates secured to said inner longitudinal edges and extending downwardly and outwardly in* diverging planes, and a dellector secured above the space between said longitudinal edges and inclosed by said funnels, whereby the smoke of an engine passing beneath said funnels is designed to be directed into the same, substantially as described.

In testimony whereof I hereunto affix my signature in presence of two witnesses.

EUGENE H. CALL. Witnesses:

W. W. WATSON, JOHN H. LADWIG.

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